CVE-2019-17075

HIGH

Description

An issue was discovered in write_tpt_entry in drivers/infiniband/hw/cxgb4/mem.c in the Linux kernel through 5.3.2. The cxgb4 driver is directly calling dma_map_single (a DMA function) from a stack variable. This could allow an attacker to trigger a Denial of Service, exploitable if this driver is used on an architecture for which this stack/DMA interaction has security relevance.

References

http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

https://lore.kernel.org/lkml/[email protected]

https://seclists.org/bugtraq/2019/Nov/11

https://usn.ubuntu.com/4208-1/

https://usn.ubuntu.com/4210-1/

https://usn.ubuntu.com/4211-1/

https://usn.ubuntu.com/4211-2/

https://usn.ubuntu.com/4226-1/

Details

Source: MITRE

Published: 2019-10-01

Updated: 2020-08-24

Risk Information

CVSS v2.0

Base Score: 7.1

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 8.6

Severity: HIGH

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH